====== Constants editing tool ======

Is appeared when in the [[editing_values]|Values window]]  **Toogle** tab is clicked and presented by table **Editor** in the consntant blocks such as [[parameter]|parameter]] etc..
The constants editing tool appears when a table cell is clicked that contains a number. It can be hidden by clicking the **Toggle** button, as shown in the screen shot below.

The editor contains two tools. By using the buttons in the toolbar you can select which tools to show.
{{:constants_edit_tool.png?500|Constants editing tool}}

===== Keypad Keypad =====

|Note|For more information about conditions see [[Expression_syntax|expression syntax]]|

Use the keypad with the mouse to enter a value or an operator without having to use the keyboard.

|**&&** |**The logical operator AND is used in conditions. For instance (time>100 && Comp1<1000)*TF.**          |
|**||** |**The logical operator OR is used in conditions. For instance (time<10 || time>90)*TF.**        |
|**== **|**The logical operator EQUALS is used in conditions. For instance "(plantType==Vegetable)*TF".**        |
|**~=** |**The logical operator NOT EQUALS is used in conditions. For instance "(height~=0)*(volume/height)".**  |
|**<--**|**Backspace.**                                                                                          |
|**< ** |**The logical operator LESS THAN is used in conditions. For instance "(Comp1<Max_Conc)*TF".**           |
|**<= **|**The logical operator LESS THAN OR EQUAL is used in conditions. For instance "(Comp1<=Max_Conc)*TF".** |
|**>=** |**The logical operator GREATER THAN OR EQUAL is used in conditions. For instance "(time>=10)*TF".**     |
|**> ** |**The logical operator GREATER THAN is used in conditions For instance "(time>time_for_accident)*TF".** |
|**<-** |**Left. Move the cursor one character to the left.**                                                     |                                                     
|**^**  |**The power function For instance, "10^a" is an alternative way of writing "power(10,a)". **            |
|**->** |**Right Move the cursor one character to the right.**                                                   |

=====  Unit conversion =====

This tool lets you convert a numerical value from one unit to another (compatible) unit.

  * **From** - The original unit
  * **Value** - The original value
  * **To** - The target unit
  * **Result** - The converted value
  * **Apply** - Copies the results into the selected cell in the table.